Okay, this is really weird.

Had my 2 HRE units of Armored Sarges attack some Moorish Camels (for some reason Moores seem to be hell-bent on taking Florence). Anyhoo, had both Spear units target the camel with a captain...captain ruots, the second camel stack starts reatreating without a fight so I send both of my spears to chase it. Now the weird part: spears start dying off in a very rapid order without any apparent reason. They are running after camels and dying. Fast. As if they had received a full volley of crossbow bolts.

I'm thinking this has something to do with unit cohesion, and individuals from different units can run each over with deadly results. Very-very weird. Has anyone else encountered anything like it?